Backing support for windshield wiper blades



FIG. 1 is a perspective view of a backing support for windshield wiper blades showing my new design it being understood that the wiper blades are shown in broken lines for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a greatly enlarged end elevation view thereof;

FIG. 3 is a greatly enlarged opposite end elevation view thereof;

FIG. 4 is a greatly enlarged fragmentary side elevation view thereof;

FIG. 5 is a greatly enlarged fragmentary opposite side elevation view thereof;

FIG. 6 is a greatly enlarged fragmentary top plan view thereof;

FIG. 7 is a greatly enlarged fragmentary bottom plan view thereof; and

FIG. 8 is a greatly enlarged fragmentary perspective view thereof.

The backing support for windshield wiper blades has been shown broken away in FIGS. 4, 5, 6, 7 and 8 for convenience of illustration. 

The ornamental design for a backing support for windshield wiper blades, as shown and described. 